I have seen shark bites fail. It is particularly problematic in inaccessible areas (hidden behind drywall). PEX compression fittings with coupled 'sticks' of

I have seen shark bites fail. It is particularly problematic in inaccessible areas (hidden behind drywall). PEX compression fittings with coupled 'sticks' of straight PEX makes runs easier (not having to straighten out the 'coil'). Also, check out the Milwaukee PEX tool. Expensive, but awesome. PS In the first episode of Stranger Things, you can see the hot and cold PEX runs in the kitchen of the diner. Very progressive.